G4S prisoner abuse
UK company accused of torture in South African prison
G4S staff have been accused of "shocking" abuses at a prison in South Africa.
the BBc has reported that the South African government has temporarily taken over the running of Mangaung prison from G4S and launched an official investigation.
Inmates claim they have been subjected to electric shocks and forced injections.
The BBC obtained leaked footage filmed inside the high security prison, in which one can hear the click of electrified shields, and shrieking. It also shows a prisoner resisting medication.
Researchers at the Wits Justice Project at Wits University in Johannesburg say they have collected accounts of electric shocks and beatings from almost 30 prisoners during a year-long investigation.
Inmates have talked about suffering broken limbs and other serious injuries.
One former prisoner told the BBC electric shocks were used as "torture", while a sacked security guard said water was thrown over inmates to increase the impact of the charge.
The South African prison authorities announced last month they were temporarily taking over the running of the prison near Bloemfontein, in the central Free State province, after the private security contractor "lost effective control of the facility".
In a statement to the BBC, G4S said while the video could not be verified, the company "takes such allegations very seriously and will be launching our own investigations into the matter".
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